The Vimśottarī tree to five levels. Every boundary is an exact division of its parent — the last child ends precisely where the parent does — and the year length is named because it changes the answer. Nothing entered here is stored on our servers — your browser alone remembers your last-used details.
Year length: 365.25636 days (meanSiderealDrik) · running now: Jupiter → Ketu → Saturn → Moon → Jupiter
Mercury
2013-01-25 → 2013-01-26
Ketu
2013-01-26 → 2013-01-27
Venus
2013-01-27 → 2013-01-28
Sun
2013-01-28 → 2013-01-28
Moon
2013-01-28 → 2013-01-29
Mars
2013-01-29 → 2013-01-29
Rahu
2013-01-29 → 2013-01-31
Jupiter
2013-01-31 → 2013-02-01
Saturn
2013-02-01 → 2013-02-02
Boundary times are root-found and residual-verified, never interpolated. Change the convention and these numbers change — which is why it is printed beside them.